I downloaded the Mac version, but it can't be opened.
4 years ago(+1)
Try redownloading the zip and double-clicking it to expand the file, this should give you an application called "mac" that looks like this, 
open it to start the game
Try redownloading the zip and double-clicking it to expand the file, this should give you an application called "mac" that looks like this, open it to start the game